22031023333440 has 224 divisors, whose sum is σ = 76548182696064. Its totient is φ = 5324005212160.

The previous prime is 22031023333439. The next prime is 22031023333483. The reversal of 22031023333440 is 4433332013022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22031023333398 and 22031023333407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56872 + ... + 6638168.

Almost surely, 2^{22031023333440} is an apocalyptic number.

22031023333440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031023333440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38274091348032).

22031023333440 is an abundant number, since it is smaller than the sum of its proper divisors (54517159362624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22031023333440 is a wasteful number, since it uses less digits than its factorization.

22031023333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581645 (or 6581635 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 22031023333440 its reverse (4433332013022), we get a palindrome (26464355346462).

The spelling of 22031023333440 in words is "twenty-two trillion, thirty-one billion, twenty-three million, three hundred thirty-three thousand, four hundred forty".